The road is the main link to the LNG Napanapa site, through the Ranuguri settlement.
An existing culvert located between the PNG Power distribution site and the tunnel was an accident waiting to happen.
Following the last few days of continuous rain in Port Moresby, debris had collected at the mouth of the culvert, laid some six meters below the ground surface.
Local youth at the scene said this culvert was blocked off, forcing the flood to pave its own path under the sealed road.
